公开(公告)号：US5781005A

公开(公告)日：1998-07-14

申请号：US485697

申请日：1995-06-07

申请人： Ravi Vig ,  Teri L. Tu

发明人： Ravi Vig ,  Teri L. Tu

IPC分类号： G01P3/488 ,  G01D5/14 ,  G01D5/245 ,  G01R33/07 ,  G01V3/08 ,  H01H36/00 ,  H01L27/22 ,  H01L43/06 ,  G01P3/48 ,  G01B7/14 ,  G01P3/54

CPC分类号： G01V3/08 ,  G01D5/147 ,  G01R33/07

摘要： A Hall-effect sensor is presented which is adapted to sense a ferromagnetic object, including an integrated circuit chip having a planar Hall element which is positioned in, parallel to, and defines a sensor plane having a front side and a back side, and which element is normal to and centered on a sensor axis, and a magnet structure having an N pole and an S pole, the magnet structure being positioned behind the sensor plane and positioned so that an S pole and an N pole are adjacent each other and both are adjacent the element.

摘要翻译： 本发明提出了一种霍尔效应传感器，其适用于检测铁磁性物体，包括集成电路芯片，该集成电路芯片具有平面霍尔元件，该平面霍尔元件位于并平行并限定了具有前侧和后侧的传感器平面， 元件以传感器轴线为中心，以及具有N极和S极的磁体结构，磁体结构位于传感器平面的后面并且定位成使得S极和N极彼此相邻并且两者都相邻 与元素相邻。

公开(公告)号：US5581179A

公开(公告)日：1996-12-03

申请号：US454916

申请日：1995-05-31

申请人： Raymond W. Engel ,  Peter J. Gilbert ,  Ravi Vig ,  Teri Tu ,  Terry Clapp

发明人： Raymond W. Engel ,  Peter J. Gilbert ,  Ravi Vig ,  Teri Tu ,  Terry Clapp

IPC分类号： G01P3/488 ,  G01B7/00 ,  G01D5/14 ,  G01D5/245 ,  G01D11/24 ,  G01P3/487 ,  G01P1/02 ,  G01B7/14 ,  G01P3/42 ,  H05K5/00

CPC分类号： G01P3/487 ,  G01D11/245 ,  G01D5/147

摘要： This invention is a magnetic-field sensor assembly comprising a preformed housing shell having a first end which includes an opening, and a second end which includes a window and having a cylindrical shape with a flattened portion to produce a truncated circular cross-section, a sensor package including an integrated-circuit magnetic-field-sensor chip encapsulated in a protective body with first and second opposite and mutually parallel faces and a plurality of integral conductive leads, each lead having a proximal portion, a distal portion, and a central portion, the proximal portion of each of said plurality of leads extending from said body, the central portion of said plurality of leads extending away from the body and positioned substantially normal the faces of the body, said sensor-package body being positioned in said housing shell part way through said window with said one body face extending outwardly from said housing shell and with said lead distal portions extending from said housing shell through said opening, a magnet having a first end and a second end and positioned in said housing shell with said first end adjacent to said second sensor-package body face, and an endcap adapted to close said opening in said housing shell.

摘要翻译： 本发明是一种磁场传感器组件，其包括具有包括开口的第一端的预成型壳体壳体，以及包括窗口并且具有扁平部分的圆柱形形状以产生截面圆形横截面的第二端， 传感器封装，其包括封装在具有第一和第二相对且相互平行的面的保护体中的集成电路磁场传感器芯片，以及多个整体式导电引线，每个引线具有近端部分，远端部分和中心部分 所述多个引线中的每一个的近端部分从所述主体延伸，所述多个引线的中心部分远离主体延伸并且基本上垂直于主体的表面定位，所述传感器封装主体位于所述壳体壳体中 部分通过所述窗口，所述一个主体面从所述壳体外壳向外延伸，并且所述引线远端部分从s延伸 通过所述开口帮助壳体壳体，具有第一端和第二端并且定位在所述壳体壳体中的所述第一端部与所述第二传感器封装主体面相邻的磁体，以及用于封闭所述壳体壳体中的所述开口的端盖。

公开(公告)号：US20130249544A1

公开(公告)日：2013-09-26

申请号：US13424618

申请日：2012-03-20

申请人： Ravi Vig ,  William P. Taylor ,  Andreas P. Friedrich ,  Paul David ,  Marie-Adelaide Lo ,  Eric Burdette ,  Eric Shoemaker ,  Michael C. Doogue

发明人： Ravi Vig ,  William P. Taylor ,  Andreas P. Friedrich ,  Paul David ,  Marie-Adelaide Lo ,  Eric Burdette ,  Eric Shoemaker ,  Michael C. Doogue

IPC分类号： G01R33/02

CPC分类号： G01R33/0047 ,  G01B7/30 ,  G01R33/0011

摘要： A magnetic field sensor includes a lead frame, a semiconductor die supporting a magnetic field sensing element, a non-conductive mold material enclosing the die and a portion of the lead frame, a ferromagnetic mold material secured to the non-conductive mold material and a securing mechanism to securely engage the mold materials. The ferromagnetic mold material may comprise a soft ferromagnetic material to form a concentrator or a hard ferromagnetic material to form a bias magnet. The ferromagnetic mold material may be tapered and includes a non-contiguous central region, as may be an aperture or may contain the non-conductive mold material or an overmold material. Further embodiments include die up, lead on chip, and flip-chip arrangements, wafer level techniques to form the concentrator or bias magnet, integrated components, such as capacitors, on the lead frame, and a bias magnet with one or more channels to facilitate overmolding.

摘要翻译： 磁场传感器包括引线框架，支撑磁场感测元件的半导体管芯，封装模具的非导电模具材料和引线框架的一部分，固定到非导电模具材料的铁磁模具材料和 固定机构可牢固地接合模具材料。 铁磁模具材料可以包括软铁磁材料以形成集中器或硬铁磁材料以形成偏置磁体。 铁磁模具材料可以是锥形的并且包括不连续的中心区域，可以是孔或可以包含非导电模具材料或包覆模制材料。 另外的实施例包括裸片，片上芯片和倒装芯片布置，用于形成集中器或偏置磁体的晶片级技术，引线框架上的诸如电容器之类的集成部件，以及具有一个或多个通道的偏置磁体，以便于 包覆成型

公开(公告)号：US08384183B2

公开(公告)日：2013-02-26

申请号：US12708855

申请日：2010-02-19

申请人： Harianto Wong ,  William P. Taylor ,  Ravi Vig

发明人： Harianto Wong ,  William P. Taylor ,  Ravi Vig

IPC分类号： H01L21/00

CPC分类号： H01L43/065

摘要： An integrated circuit and a method of making the integrated circuit provide a Hall effect element having a germanium Hall plate. The germanium Hall plate provides an increased electron mobility compared with silicon, and therefore, a more sensitive Hall effect element.

摘要翻译： 集成电路和制造集成电路的方法提供具有锗霍尔板的霍尔效应元件。 与硅相比，锗霍尔板提供了增加的电子迁移率，因此是更敏感的霍尔效应元件。

公开(公告)号：US20120249126A1

公开(公告)日：2012-10-04

申请号：US13077127

申请日：2011-03-31

申请人： Andreas P. Friedrich ,  Andrea Foletto ,  Ravi Vig

发明人： Andreas P. Friedrich ,  Andrea Foletto ,  Ravi Vig

IPC分类号： G01R33/02

CPC分类号： G01D5/2448 ,  G01D5/145 ,  G01D5/2449

摘要： A circuit for detecting object movement includes one or more predetermined threshold detectors, one or more tracking threshold detectors, and an output selector to generate an output signal related to at least one of an output of a predetermined threshold detector or an output of a tracking threshold detector based on a predetermined condition. A method of detecting object movement includes generating: a magnetic field signal proportional to a magnetic field associated with the object, a tracking signal to track peaks of the magnetic field signal, a predetermined threshold output signal responsive to the magnetic field signal and to a predetermined threshold, and a tracking threshold output signal responsive to the magnetic field signal and to the tracking signal, and providing an output signal related to a selected one of the predetermined threshold output signal or the tracking threshold output signal based upon a predetermined condition.

摘要翻译： 用于检测物体移动的电路包括一个或多个预定阈值检测器，一个或多个跟踪阈值检测器，以及输出选择器，用于产生与预定阈值检测器的输出或跟踪阈值的输出中的至少一个有关的输出信号 检测器基于预定条件。 一种检测物体运动的方法包括：产生与磁场相关的磁场成比例的磁场信号，跟踪信号以跟踪磁场信号的峰值，响应于磁场信号的预定阈值输出信号和预定的 阈值和响应于磁场信号和跟踪信号的跟踪阈值输出信号，以及基于预定条件提供与所选择的预定阈值输出信号或跟踪阈值输出信号中的所选择的输出信号相关的输出信号。

公开(公告)号：US08089270B2

公开(公告)日：2012-01-03

申请号：US12401096

申请日：2009-03-10

申请人： P. Karl Scheller ,  Ravi Vig

发明人： P. Karl Scheller ,  Ravi Vig

IPC分类号： G01B7/30

CPC分类号： G01R33/091 ,  G01D5/2448 ,  G01R33/072

摘要： Apparatus for detecting a passing magnetic article includes a peak detector providing a detector output signal that changes state when the magnetic field signal differs from a magnetic field tracking signal by more than a threshold offset amount. The threshold offset amount is dynamically variable in response to detection of a speed of rotation of the magnetic article and a peak-to-peak signal level of the magnetic field signal.

摘要翻译： 用于检测通过的磁性制品的装置包括提供检测器输出信号的峰值检测器，当磁场信号与磁场跟踪信号不同于阈值偏移量时，该检测器输出信号改变状态。 响应于磁性物品的旋转速度的检测和磁场信号的峰 - 峰信号电平，阈值偏移量是动态变化的。

公开(公告)号：US07936144B2

公开(公告)日：2011-05-03

申请号：US12139539

申请日：2008-06-16

申请人： Ravi Vig ,  Paul David ,  Shaun D. Milano ,  Michael C. Doogue ,  David J. Haas

发明人： Ravi Vig ,  Paul David ,  Shaun D. Milano ,  Michael C. Doogue ,  David J. Haas

IPC分类号： G05D23/275

CPC分类号： G05B19/19 ,  G05B2219/41099 ,  G05B2219/41337 ,  G05B2219/42152 ,  G05B2219/45178 ,  H02P25/034

摘要： A motion control device for controlling a motor is presented. The motion control device is operable to scale or adjust an input relative to an input range that is based on calibration values and to use that scaled input to produce a drive signal to drive the motor. The motion control device performs a self-calibration to produce the calibration values. The self-calibration involves measuring home position and full travel position values for the motor.

摘要翻译： 提出了一种用于控制电动机的运动控制装置。 运动控制装置可操作以相对于基于校准值的输入范围缩放或调整输入，并且使用该缩放输入来产生用于驱动马达的驱动信号。 运动控制装置执行自校准以产生校准值。 自校准包括测量电机的起始位置和全行程位置值。

公开(公告)号：US07746056B2

公开(公告)日：2010-06-29

申请号：US12357421

申请日：2009-01-22

申请人： Jason Stauth ,  Richard Dickinson ,  Glenn Forrest ,  Ravi Vig

发明人： Jason Stauth ,  Richard Dickinson ,  Glenn Forrest ,  Ravi Vig

IPC分类号： G01R15/20

CPC分类号： G01R15/205 ,  G01R15/207 ,  G01R33/09 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2224/4903 ,  H01L2924/00014

摘要： An electronic circuit includes a substrate having a surface and a device supported by the surface of the substrate. The electronic circuit also includes a magnetic field transducer disposed over the surface of the substrate and an insulating layer disposed between the substrate and the magnetic field transducer. The electronic circuit also includes a conductor disposed over the magnetic field transducer. The conductor is configured to carry an electrical current to generate a first magnetic field. The electronic circuit is responsive to the first magnetic field.

摘要翻译： 电子电路包括具有表面的衬底和由衬底的表面支撑的器件。 电子电路还包括设置在基板的表面上的磁场换能器和设置在基板和磁场换能器之间的绝缘层。 电子电路还包括布置在磁场传感器上的导体。 导体被配置为承载电流以产生第一磁场。 电子电路响应于第一磁场。

公开(公告)号：US07548056B2

公开(公告)日：2009-06-16

申请号：US12041052

申请日：2008-03-03

申请人： Cory Voisine ,  Devon Fernandez ,  Karl Scheller ,  Ravi Vig ,  Kirsten Doogue

发明人： Cory Voisine ,  Devon Fernandez ,  Karl Scheller ,  Ravi Vig ,  Kirsten Doogue

IPC分类号： G01B7/14

CPC分类号： G01P3/487 ,  G01D5/147 ,  G01P3/481

摘要： Apparatus and methods for detecting passing magnetic articles using a first, True Power On State (TPOS) detector during a first time interval and transitioning to a second, running mode detector after the first time interval, when the output of the second detector is accurate. A phase comparator is responsive to the output signal of the first and second detectors and provides a control signal indicative of a change in the phase relationship between the two output signals. An output switch controlled by the phase comparator provides, as the detector output signal, the first detector output signal during the first time interval and the second detector output signal thereafter. A threshold signal associated with the TPOS detector is at a fixed level during a first portion of the first time interval and is adjusted during a second portion of the first time interval in response to an automatic gain control circuit in order to reduce the phase error associated with transitioning from the TPOS detector to the running mode detector. Also described are apparatus and methods for updating a running mode threshold signal that is a percentage of the peak-to-peak magnetic field sensor signal, so that unnecessary update events are reduced.

摘要翻译： 在第一时间间隔期间，当第二检测器的输出是准确的时候，在第一时间间隔之后，使用第一，真实开启状态（TPOS）检测器检测通过磁性物品并转换到第二运行模式检测器的装置和方法。 相位比较器响应于第一和第二检测器的输出信号，并且提供指示两个输出信号之间的相位关系变化的控制信号。 由相位比较器控制的输出开关作为检测器输出信号，提供第一时间间隔期间的第一检测器输出信号，此后提供第二检测器输出信号。 与TPOS检测器相关联的阈值信号在第一时间间隔的第一部分期间处于固定电平，并且在第一时间间隔的第二部分期间响应于自动增益控制电路进行调整，以便减少相关的相位误差 从TPOS检测器转换到运行模式检测器。 还描述了用于更新作为峰 - 峰值磁场传感器信号的百分比的运行模式阈值信号的装置和方法，从而减少不必要的更新事件。

公开(公告)号：US07518354B2

公开(公告)日：2009-04-14

申请号：US11767631

申请日：2007-06-25

申请人： Jason Stauth ,  Richard Dickinson ,  Glenn Forrest ,  Ravi Vig

发明人： Jason Stauth ,  Richard Dickinson ,  Glenn Forrest ,  Ravi Vig

IPC分类号： G01R15/20

CPC分类号： G01R15/205 ,  G01R15/207 ,  G01R33/09 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2224/4903 ,  H01L2924/00014

摘要： An electronic circuit includes a first substrate having a first substrate surface and a device supported by the first substrate surface. The device is selected from among a passive electronic component and an active electronic component. The electronic circuit also includes a second substrate having a second substrate surface and a conductor proximate to the second substrate. The electronic circuit also includes a magnetic field transducer disposed over the conductor and coupled to the device and an insulating layer disposed between the conductor and the second substrate. The conductor is adapted to carry an electrical current to generate a first magnetic field. The electronic circuit is responsive to the first magnetic field. In some embodiments, the conductor is a secondary conductor and the circuit further includes a primary conductor disposed proximate to the magnetic field transducer and an insulating layer disposed between the primary conductor and the second substrate.

摘要翻译： 电子电路包括具有第一衬底表面的第一衬底和由第一衬底表面支撑的器件。 从无源电子部件和有源电子部件中选择该装置。 电子电路还包括具有第二衬底表面和靠近第二衬底的导体的第二衬底。 电子电路还包括设置在导体上并耦合到器件的磁场换能器，以及设置在导体和第二衬底之间的绝缘层。 导体适于承载电流以产生第一磁场。 电子电路响应于第一磁场。 在一些实施例中，导体是次级导体，并且电路还包括邻近磁场换能器设置的主导体和设置在主导体和第二衬底之间的绝缘层。